Παραπομπή σε μορφή APA (7η εκδ.)

Swain, S., & Boys-Stones, G. R. (2007). Seeing the face, seeing the soul: Polemon's physiognomy from classical antiquity to medieval Islam. Oxford University press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Swain, Simon, και G. R. Boys-Stones. Seeing the Face, Seeing the Soul: Polemon's Physiognomy from Classical Antiquity to Medieval Islam. Oxford: Oxford University press, 2007.

Παραπομπή σε μορφή MLA (8th εκδ.)

Swain, Simon, και G. R. Boys-Stones. Seeing the Face, Seeing the Soul: Polemon's Physiognomy from Classical Antiquity to Medieval Islam. Oxford University press, 2007.